Abstract: A mobile concrete pump comprising a supporting frame (16) mounted on a chassis (10) and a pump unit (30) disposed on the supporting frame (16) and having a rear material feeder container (32). Conveyor pipes or tubes (38, 40) can be connected to the pump unit (30), and can be transported in magazines (42, 44) along with the automatic concrete pump. The magazines can be easily accessed when they are moved from a transport position substantially parallel to the loading area (48, 50) into a removal or unloading position, with back end tilting downwards, by rotating said magazines around an axis of rotation (52, 54) parallel to the vertical axis of the chassis and tilting around a tilting axis (56, 58) which runs crosswise in relation to their longitudinal axis and perpendicular to the vertical axis of the chassis. Rotation and tilting of the magazines (42, 33) can be done manually or using hydraulic means.

Abstract: The mobile working machine has a chassis (10) comprising at least four wheels (30) arranged in pair-wise associated with wheel axles (32) and connected to a frame (36) by interposed wheel springs (34) pre-tensionable by the effect of a load exerted on the frame. Two support legs (22) are also provided laterally one opposite the other on the sides of the frame, associated with one of the wheel axles (32), preferably the back axle, which have a foot-part (26) which can be extended downward and supported on the ground thereby lifting the chassis. At least one blocking mechanism is also provided to selectively release or block the spring path of one of the wheel springs (34). In order to ensure reliable and safe manipulation during blocking of the axle, the blocking mechanism (38) automatically moves in the blocking direction when the foot-part (26) is pulled out and automatically moves in the release direction when the foot-part (26) is retracted.

Abstract: The invention relates to a travelling thick matter pump with a driving mechanism presenting an automobile engine (40) and a gear boxy (42), wherein the driven shaft (46) of the gear boxy can be connected via an interposable transfer gear (48) to a hydraulic pump (54) in order to drive the which matter pump (24) and a speed limitation device for the setting of a maximum engine speed during operation of the pump. I order to selectively ensure optimum pump operation, according to the invention the transfer gear (48) presents at least two step-up ratios after whose activation differing maximum engine speeds can be set via the speed limitation device (70).

Abstract: A concrete pump vehicle has a foldable concrete distributing boom (18) arranged on a chassis (10), a material container (24) arranged next to the rear end of the chassis (10) and a concrete pump (28) connected at its suction side to the material container (24) and at its delivery side to a delivery line (26) that extends over the distributing boom (18). The material container (24) is provided with an anti-splashing device that projects over the edge of the opening and ensures that no concrete splashes reach the machine area during operation of the pump. In order to achieve an optimal splash-protection in both the traveling and working states, the anti-splash device has a wall structure (36) that projects over the edge of the opening and a foldable wall (40) hingedly linked to the area of the upper edge of the wall structure (36).